Question

2 A kovács a meleg vasat a hideg vízbe teszi. A vas

energiája 300 kJ-lal csökkent. Mennyivel nőtt a vízé?​

Answer 1

300 kJ

Step-by-step explanation:

There are two energy flows in this process.

Heat lost by iron + heat gained by water = 0

q₁ + q₂ = 0

-300 kJ + q₂ = 0

q₂ = 300 kJ

The water gained 300 kJ.